1.   Which number describes the spread of a set of data?
    A. mode B. median
    C. mean D. range
    Hint

  2.   Find the mean for the data set
99, 103, 140, 153, 109, 92, 125, 110, 140.
    A. 110 B. 119
    C. 61 D. 140
    Hint

  3.   Refer to the set of data below. If 15 were removed from the set of data, which values would change?
   
    A. range B. mode
    C. range and mean D. mean, median, and range
    Hint

  4.   Which describes the number that appears most often in a set of data?
    A. mean B. median
    C. mode D. range
    Hint

  5.   Find the range of the data set 145, 612, 120, 349, 515, 212, 590.
    A. 512 B. 492
    C. 445 D. 470
    Hint